Clevis antirattling and pin-retaining attachment



C. H. DUFFY.

CLEVIS ANTIRATTLING AND PIN RETAINING ATTACHMENT.

APPLICATION FILED JUNE 17, I920.

Patented Oct. 4, 1921.

PATENT OFFICE. i

UNITED stares m HUGE 1mm, OI CHAIR,

cam mama-rants AID rm-mmnro A'I'IAM.

. Specification of Letters Patent.

Patented Oct. 4, 1921.

' Application fled Inc 17; 1990. lerlal I0. 889,699.

To all whom it may concern:

Be it known that I, CHARLES HUGH Dom, a' citizen of the United Statesresiding at Che Chase, in the county of M and tate of Maryland, haveinvented certain new and useful Improvements in Clevis Antirattling andPin Retaining Attachments; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

This invention relates to clevises for automobiles and the like, butmore particularly to a combined anti-rattlin and clevispin lockingdevice therefor, an the invention has for its object to provide asimple, inexpensive and eificient attachment for ready application to aclevis to prevent rattling of the parts and to lock the clevispin inposition in such manner that the usual cotter pin or other pin retainingdevlce can be dispensed with.

With this object in view, the invention consists of the construction ofthe clevis attachment as will be first fully described and afterwardspecifically pointed out in the appended claims.

Referring to the accompanying drawing:'

an edge elevation of the attachment.

Like numerals of reference indicate the same parts th: oughout theseveral figures, in which: 1

1 indicates a clevis which includes the eyemember 2, yoke-member 3 andclevis pin 4; said pin including a head 5. 6 indicates the anti-rattlinand pin locking attachment, which as s own, is substantially U shaped Iand isblanked and formed of suitable thin ontgomery spring sheet metal;the twoarms 7 and 8 of t e attachment 6 converging toward each other asshown in Figs. 5 and 6.

Referring to Fi 4, it will be seen that'the arm 7 1s provide with asubstantially central o enmg 9 communicating with a narrow bifurcatingvertical slot 10 lying above the opening 9, the opening 9 being also incommunication with a flaring passage 11 bifurcating the lower portion ofthe arm 7. The width of the upper portion of the passage 11 is lessthanthe diameter of the opening 9, for a purpose which will be presentlyset forth.

Referring to the arm 8 of the attachment 6, it will be seen that thesame contains two parallel cuts 12, forming a central tongue 13 lyingout of the plane of the arm 8 in a curved formation, the free end 14 ofthe curved tongue 13 approaching the arm 8 adequal in width to thediameter of the clevispin ,4.

Having described the attachment, its application to a clevis and itsaction are as follows The two clevis members 2 and 3 and the pin 4 beingin assembled position, the bifurcated arm 7 of the attachment 6 isinserted between one arm of the yoke-member 3 and the'eye-member 2;while the bifurcated arm 8 of the attachment 6 is inserted between thehead 5 of the pin 4 and the adjacent face of the yoke-member 3. The twoarms 7 and 8 of the attachment 6 converging as before mentioned, saidarms are slightly sprung apart when attached to the clevis so as to liesubstantially parallel with each other, so that when said arms areinserted into the clevis as just mentioned, it is necessary to applysufiicient pressure to the attachment to cause the flarin passage 11 ofthe arm 7 to engage the clevis-pin 4 and to assume the position shown indotted lines in Fig. 4. As soon as the clevis-pin has passed through therestricted portion of the passagev 11, and enters the central opening 9,the arm 7 snaps back into normal position'to lock the same around thepin 4, as shown in Fig. 5. As the bifurcated arm 8 of the attachmentprogresses under the head 5 of the pin 4, the curved tongue 13 thereofsprings over the top of the head 5 and back intonormal position as shownin Figs. 3 and 5; thus efiecwent 6 havm tively locking the arm 8 of theattachment 6 on the pin 4, while the tongue 13 also retains the pin 4against longitudinal movement and holds the same in effective operativeposition.

When the attachment 6 is thus in positlon on the clevis, the arms7 and 8of the attacha spring tension normally tending to bring said arms towardeac other, a slight pressure is thus maintained on the eye-member 2transversely of the clevis to hold said eye-member snugly against onearm of the yoke-member 3 to prevent rattling of the Fparts, as'will beseen from an inspection of ig. 3

While in the type of c ev1s shown in the drawing, the usual cotter pinmay still be employed, the same is not necessary, although when a cotterpin is in place 1n the clevispin, the same need not be removed, as thisattachment is applied to the clev1s without se arating the clevis.

aving thus fully described the preferred embodiment of the invention,what I cla1m as new and desire to secure by Letters Patent of the UnitedStates, is:

1. An attachment for clevises including a substantially U shaped memberhavlng its free ends converging toward each other, one of the arms ofthe member having a substantially centrally located opening to recelve aclevis-pin, a bifurcating slot in communication with said opening and aflaring passage to receive a clevis-pin, the width of said passageadjacent the said opening be ng less than the diameter of the saidopening, the other arm of the U shaped member being bifurcated toreceive a clevis pin and including a tongue to pass over the head of aclevis pin to retain the pin against longltudmal movement. p v

2. An attachment for clevises including a substantially U shaped member,one of the arms of which is provided with a substantially centrallylocated opening to receive a clevis-pin and having a bifurcating slot incommunicationwith said opening and a flaring passage to initiallyreceive a clevis-pin, the width of said passage adjacent the saidopening being less than the diameter of the said opening, the other armof the U shaped member being bifurcated to receive a clevis pin andincluding a tongue to pass over the head of a clevis-pin to retain thepin against longitudinal movement.

3. An attachment for clevises including a substantially U shaped member,one arm thereof having an opening to receive a clevis-pin, the other armhaving an opening therein to receive a clevis-pin, and a tongue on thelast mentioned arm for engagement with the head of a clevis-pin toretain the pin against longitudinal movement.

4. As an article of manufacture, an attachment for clevises including asubstantially U shaped member, one arm of which is bifurcated to form aring to receive a clevisin, the said arm including means at the biurcated portion thereof to retain the clevis-pin received therein, theother arm of the attachment bein bifurcated toreceive a clevis-pin andinc uding a pin-retaining spring tongue to engage the head of aclevisin, the said two arms of the attachment aving a spring tension inthe direction of each other to hold the clevis members of a clevis snugltogether in a direction transversel of t e clevis.

5. s an article of manufacture, an attachment for clevises including asubstantially U shaped member, one arm of which is bifurcated to form aspring to receive a clevisin, the said arm including means at the bircated portion thereof to retain the clevis pin received therein, theother arm of the attachment being bifurcated to receive a clevis-pin,and including a pin-retaining spring tongue to engage the head of aclevispin to retain the same against longitudinal movement.

6. An attachment for clevises including a spring member having two arms,one am having an opening to receive a clevis-pin and having a part ofsaid arm adapted to engage the eye-member of a clevis to press the sametransversely against the yoke-member of a clevis, the other arm of thespring member having an opening to receive a clevis-pin and includingmeans adapted to engage the head of a clevis-pin to retain the pinagainst longitudinal movement.

7 An attachment for clevises including means for pressing the eye-memberof a clevis transversely against the yoke-member of a clevis, andincluding means for enga ingthe head of a clevis pm to retain the pinagainst longitudinal movement.

8. An attachment for clevises including means for engagement with theclevis-pin of a clevis and with the eye-member thereof to press saideye-member transversely against the yoke-member of a,clevis, andincluding means for engagement with the head of a clevis-pin to retainthe pin against longitudinal movement.

9. An attachment for clevises including two arms, one of which includesmeans for locking engagement with the clevis-pin of a clevis and forengagement with the eyemember of a clevis to press same transverselyagainst the yoke-member of a clevis, theother arm including means forengagement with the head of a clevis-pin to retain the pin againstlongitudinal movement.

10. An attachment for clevises including two arms, one of which includesmeans 'to receive a clevis pin therethrough, the other'of which includesmeans for receiving a clevispin therethrough and also including furthermeans for engaglng the head of a clevis-pin for retaining thepin'against longitudinal movement.

11. An attachment for clevises including two arms, one of which includesmeans to receive a clevis-pin therethrough and for engaging one side ofthe eye-member of a clevis, the other of said arms including means forengaging the head of a clevispin to retain the pin against longitudinalmovement, the'said'two arms having a spring tension in the direction ofeach other to hold the clevis members snugly together in a directiontransversely of the clevis.

12. An attachment for clevises including a substantially U shapedmember, both arms of which are bifurcated to straddle a clevispin, eachbifurcated arm including means for effecting a locking engagement with aclevis pin to prevent casual movement of the attachment transversely ofthe clevis-pin.

13. An attachment for clevises including a substantially U shapedmember, one of the arms of which includes means for engagement with thehead of a clevis-pin to retain the pin against longitudinal movement,the other arm including means for effecting a spring locking engagementwith a clevis pin to prevent casual shifting of the member transverselyon the clevis-pin.

14. An attachment for clevises including a U shaped member, the arms ofwhich have a spring tension in the direction of each other, one of thearms including means for receiving a olevis-pin and for engagement withone side of the eye-member of a clevis, the other of the arms includingmeans for receiving a clevis-pin and for engagement with one arm of theyoke-member of a clevis, the said two arms being adapted to hold thesaid members of a clevis snugly against each other in a directiontransversely of the cleIvis.

n testimon I oii whereof, I aflix my signature. ARLES HUGH DUFFY.

